Which letter is not used as a symbol of chemical element?

N
O
P
R
N is the chemical symbol of ni­tro­gen, O - oxygen, P - phos­pho­rus.

Answers distribution

N
O
P
R
answers
flagAustralia
0%
0%
0%
100%
12
flagSingapore
0%
0%
10%
90%
10
flagUnknown
2%
5%
5%
87%
39
flagCanada
4%
0%
8%
86%
23
flagIndia
1%
7%
5%
82%
88
flagPoland
5%
6%
6%
81%
2670
flagMalaysia
9%
0%
0%
81%
11
flagthe United States
5%
8%
6%
78%
187
flagthe Philippines
11%
0%
11%
72%
18
flagthe United Kingdom
5%
11%
10%
70%
119
flagNorway
7%
15%
7%
69%
13
flagPakistan
0%
15%
15%
69%
13
flagGermany
8%
20%
16%
54%
24
flagFinland
50%
8%
8%
33%
12

Gender

men79%
women77%
N
5%
5%
O
6%
9%
P
7%
7%
R
79%
77%

Language versions

question
answers
results
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Which letter is not used as a symbol of chemical element?
480
79%

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Illustration: Bri Weldon
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